Trouble Shooting

Note condition and operation of anti-theft system indicator light. If indicator stays on or flashes continuously, repair anti-theft system as necessary. See ANTI-THEFT SYSTEMS . Check starter solenoid terminals and battery grounds for clean, tight connections. Check for proper installation of aftermarket electronic equipment that could affect system. Check IGN (50-amp) fuse in underhood junction block for open condition. See COMPONENT LOCATIONS  . Perform self-diagnostic system test to be certain no trouble codes are stored in PCM memory which may lead to misdiagnosis. For further information, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. Ensure battery is in good condition and is fully charged prior to testing system. Ensure charging system is okay. See GENERATORS & REGULATORS .